Submarine lantern



' eUnirse STATES `Mirnivrr Ormea LUTHER FOWLER, OF WEST HAVEN, CONNECTICUT.

SUBMARINE LANTERN.

SPECIFICATION formingpart of Letters Patent No. 240,823, dated May 3, 1,881.

Application filed February 28, 1881. (No model.)

To all whom it may concern:

Be it known that I, LUTHER FOWLER, a citizenof the United States, residing at Vest .Haven, in the county ot' New Haven and State making a part of this specification, and to the` letters and figures of reference marked thereon. Figure .l ot' the drawings is a side elevation of my invention with the attachments for use as a submarine lantern or lamp. Fig. 2 isa sectional elevation with the attachments for use as a hand-lantern; and Fig. 3 is adetail view, showing the coupling-connection between the upper end ofthe lantern and chimney.

The present invention has relation to certain new and useful improvements in submarine lanterns that may be adapted for use either as a submarine lantern `or lamp or hand-lantern, as circumstances may require.

The object of the invention is to provide a lantern or lamp of the above-mentioned character that will not alone be effective for submarine purposes, but readily convertible at `pleasure into an ordinary hand lamp or lantern, or, if desirable, into a street-lamp. These objects I attain by the construction and various attachments shown in the accompanying drawings and hereinafter described.

In the drawings,A represents the ordinary receptacle for oil, provided with the usual burner, wick, and means for raising or lowering it. The iiaine is protected by a heavy glass globe, a., the same being supported in a frame composed of the top and bottom sections, B C, ot suitable metal. The lamp or oil-receptacle A is preferablyr of lnetal, and is formed with a' circumferential rim, D, which, together with the section C, forms the base of the lamp or lantern. The rim D is formed with an annular shoulder, b, upon which is placed a rubber or other suitable packing-rin g, c, the section C, and rim D, having screw-threads for connecting them together,the packing forming an airtight joint between `the two.

The air-conducting tubes, together with the top and bottom B C, form the frame of the lamp or lantern. Ihese tubes are formed in sections E F, the sections E being rigidly connected to the bottoni C, for conveying air to the interior of the lamp or lantern, and being the sole means of supplying air to promote combustion.

The upper sections, F, of the air-conducting tubes are rigidly connected to the top B, andm are joined to thc upper ends of the sections E by suitable screw-couplin gs, d. These sections of tubing I", if desired, may be constructed so as to continue beyond the top ot the lamp or lantern but it is preferred that they be made with joints or tight couplings e, for the attachment of supplementary removable tubes or airconductors f, connected to a chimney, G, of any suitable length.

The top B is formed with a short chimney,

g, having screw-threads upon its exterior, for attaching the supplemental chimneyGby coupling-sleeve'h. The chimney G and tubes f, at their upper ends, are above the water-level when the lamp or lantern is used for suh1narine purposes, the chimney furnishing an exit for'the smoke and heat and the tubesfsupplyin g the required quantity of air to the interior of the lamp or lantern. It' considered necessary, an inner glass 4globe may be used to prevent the globe a, from mbecoming too hot. l

The air-conducting tubes being formed in sections E F and suitably coupled together admits of the top and bottom B C being separated, when it is required, so as to admit of a broken globe being replaced by a new one.

It should be noticed that the sections E F form in themselves a frame-Work around the globe a, to preserve it vfrom-injury, and as the sections are rigidly secured to the top and bottom B C,they hold the two together after the couplings el have been secured in place,there by dispensing withthe usual rods and screwnuts usually employed to form a frame-work around the globe and hold the top and bottom together. g

When my invention is used as a hand or street lamp or lantern the supplemental or eX- tension chimney Gr and the supplemental airconductors fare detached and removed by unscrewing the couplings h e.

Any suitable support, handle, or protector may be used when the lamp or lantern is elnployed for any other purpose than that of illuminating under water; but in order to carry out my invention and show its application to a hand lamp or lan tern, I employ and illustrate the protector, as shown at H, having a suitable handle, z', said protector having upon its under side short rods j and couplings k, for connecting them to the sections F, as shown in Fig. 2.

The special construction of myV invention and the attachments employed render it not only applicable to illuminate under water and effective for all submarine purposes Where a lamp or lantern is required, but it may be converted into a superior hand, street, or carriage lamp, as any sudden lifting or shifting ot' its position does not cause the anic to flicker or go out.

Having now fully described my invention. What I claim as new, and desire lto secure by Letters Patent, is-

1. In asubmarine lantern,the lam p A,formed with the screw-threaded rim D and the threaded section C, having tube-sections E, in comd bination with the top B, having rigidly con-y nected thereto tube-sections F and couplings d, substantially as and for the purpose set forth.

2. The section C, having tube-sections E, and the top B, having connected thereto tube-sections F, in combination with the supplemental chimney G, having connected to it the tubes f, substantially as and for the purpose speci- 

